As Mike Leigh's five-decade career takes centre stage at the Paris Cinémathèque for a retrospective, the British filmmaker speaks to Eve Jackson about 50 years of making movies, from the raw intensity of "Naked" and the jubilant optimism of "Happy-Go-Lucky", to historical storytelling in "Peterloo" and "Mr Turner". With accolades like the Palme d'Or for "Secrets & Lies" at the Cannes Film festival and the Golden Lion for "Vera Drake" at Venice, at 82 Leigh continues to illuminate humanity's complexities with his latest film "Hard Truths".